... 3V~36V good safety Appliance for audio series medical instrument etc EI type 4116 Low frequency transformerMaterials:Cores are lapped by high ... voltage:100V~240V/50Hz-60HzPower:250WStable performanceCustom-madeApplication:Audio series,Medical instrument,Air-conditioner,Humidifier,Charger,etc.Model NumberPowerDimension( ... options. Other designs on your options. EI type 4116 Low frequency transformer